It concerns a Swiss opera singer who volunteered in the French Red Cross as an entertainer.
6 seconds sound clip from the The 39 Steps (1937) classic radio play.
You can hear this line at 00:41:42 in the radio play.
Quote context
[...]
- And that's probably the finest, thinnest and most fragile thing I can think of for the moment.
- I see. Almost as amazing as this machine I'm speaking of.
- Lux Flakes remind me of women.
- And women, in turn, recall an amazing spy story I encountered during the World War.
- It concerns a Swiss opera singer who volunteered in the French Red Cross as an entertainer.
- One day she started to cross and found a new officer in charge.
- He took a good look at her and immediately ordered his women assistants to search her.
[...]